MPG b760i edge wifi BIOS update killed audio

[halfful15df02e8]

I just updated my BIOS to the latest 7D40vAD, and audio quit working. The Realtek driver no longer appears in the Win11 sound control panels. It's not visible in the Device Manager unless you "Show Hidden Items" and in that case the OS lists it as an unconnected device. There are tons of threads about this problem, here and on Reddit, but no apparent resolution.

I've already tried,
- reinstalling the Realtek drivers
- downgrading the bios back to AC
- disabling/enabling the audio engine in the bios
- CMOS reset via the mobo jumper

What's the next move here?

 

[halfful15df02e8]

The new BIOS you dm'ed works! Hopefully this means the end of the story for everyone.

 

[rgbnameles15da02ea]

Hello, can I get the same bios in DM, as halfful15df02e8, please? Because I have the same exact problem.

 

[rgbnameles15da02ea]

Just updated to E7D40IMS.1H0 BIOS, problem still here, still no audio

 

[halfful15df02e8]

That seems wrong, not in sequence with the others for B760i edge wifi. (But maybe you have a slightly different mobo?)

The version I got from Alan J T was E7D40IMS.AE2.

 

[Alan J T]

Just updated to E7D40IMS.1H0 BIOS, problem still here, still no audio

Make sure to flash back to the previous working BIOS first

The second-to-last bios released in 2023 will be the one you want

Flashing to this BIOS will not void the warranty



Roll back to the last working bios and then update the BIOS with the Svet BIOS update tool. This has worked for a few people so far without the need for the other patched Bios to be used.
Download the tool from the link:
>>> Latest Forum UEFI Shell Flash tool <<<

https://forum-en.msi.com/index.php?threads/forum-uefi-shell-flash-tool-v1-81-for-msi-boards-%E2%9C%94.343010/

 

[halfful15df02e8]

For me, rolling back to 7D40vA8 (mid 2024) was sufficient to restore audio. vA9 was the first that broke things.

 

[rgbnameles15da02ea]

Rolled back to E7D40IMS.160 (second to last 2023) via built in flash tool, checked that audio is working, disabled secureboot, flashed back to E7D40IMS.1H0, using Svet BIOS update tool, audio is working. Thank you for the help.

 

[docent77]

Hello, can I get the same BIOS to fix the no sound issue in Windows 11? I currently have the latest BIOS 7D40vAF 2026-04-07, and my motherboard is an MPG B760I EDGE WIFI.

 

[dvair]

Hello, can I get the same BIOS to fix the no sound issue in Windows 11? I currently have the latest BIOS 7D40vAF 2026-04-07, and my motherboard is an MPG B760I EDGE WIFI.

Roll back to one that worked and then update to the newest one using the forum flashing tool that is linked a couple of posts above.

 

[docent77]

Roll back to one that worked and then update to the newest one using the forum flashing tool that is linked a couple of posts above.

Which is the working version and which is the latest?

 

[dvair]

The latest is the AF, try the AD one and see if your sound works. If it does then use the forum flasher to go back to AF

 

[docent77]

The latest is the AF, try the AD one and see if your sound works. If it does then use the forum flasher to go back to AF

It didn't work! I did everything as you described, but the audio device still doesn't appear in Windows 11.
I also tried flashing older BIOS versions, but the audio device still doesn't appear.

 

[dvair]

Probably going to have to RMA the board if you want onboard audio. You can also just buy a sound card if you don't want the hassle of the RMA.

 

[fatedust]

I also tried flashing older BIOS versions, but the audio device still doesn't appear.

Have you tried to revert to BIOS 7D40vA8? I see halfful15df02e8 mentioned that could restore the audio.

 

[docent77]

Have you tried to revert to BIOS 7D40vA8? I see halfful15df02e8 mentioned that could restore the audio.

Hello!
I tried flashing BIOS version 7D40vA8, but it didn't work. The sound card didn't show up.